Salt-evaporator



(No Model.)

H. KNOWLTON.-

SALT EVAPORATOR.

No. 269,945. Patented Jan. 2, 1883.

life 5'5: 1747 19712 072 J. W Jr. Know Z2 0 UNITED STATES PATENT Trice.

HENRY KNOWLTON, OF EST BAY CITY, MICHIGAN.

SALT- EVA PO RATO R.

SPECIFICATION forming part of Letters Patent No. 269,945, dated January2, 1883,

Application tiled August 31, 1882. (No model.)

To all whom it may concern Be it known that I, HENRY KNowLToN, of WestBay City, in the county of Bay and State of Michigan, have invented newand useful Improvements in Salt-Evaporators; and I hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing bad to the accompanying drawing, which lorms a part of thisspecification.

My invention relates to improvements in apparatus for evaporating ingrainers, and the novelty consists in the construction and arrangementofparts, as will be more fully hereinafter set forth, and specificallypointed out in the claims.

1n the accompanying figure of drawing which forms a part of thisspecification, a view in perspective of my improvement is shown; and inthis drawingA represents a v vprovided with a smoke-stack, B, at thefront end, in the usual way. 0 is the'steam-dome, from the top of whichthe branch pipe D carries'the steam to the main pipe E, whichcommunicates with the distributing-pipes F iiithe grainer G, suchdistributing-pipes and grainer being also of the usual construction. Themain pipe extends to and forms a connection with the smoke-stack, asshown. Another steain-pipe, H,.als0 lakes steam from near the top of thedome and carries it through the smoke-stack and discharges into the mainpipe, thereby causing a. vacuum at the point of discharge, by means ofwhich a portion of the products of combustion is drawn into the mainsteam-pipe and brought within the current of the steam therein. A pluglike that usually employed in injectors or ejectors may be employed, sothat the discharge end of the steam-pipe H will have a more perfecteffect. It prelerred, a fan may be located in the smoke-stack and drivenfrom any convenient source of power, by means of which the products ofcombustion will be driven into the main steam-pipe without departingfrom the spirit of my invention, or other devices that will accomplishthe same result may be so employed. Near the exit-orifice oi." thesmokestack I place a damper, I, which, being'abovo' By commiugljng theheated gases of the fur;

nace, as I have described,\vith the steam from the furnace or boiler, Iam enabled,with a certain amount of fuel, to evaporate a much largerquantity of brine than can be done in the ordinary methods employed.

IVhat I claim as my invention is- 1. The combination, with asteam-boiler and salt-grainer, of the main steam-pipe communicating withthe domeof the generator and the furnace of the boiler through thesmokestack, which has an open pipe controlled by a damper, and anadditional steam-pipe adapted to take steam from the generator, carryingthe same through the smoke-stack and into the main steam-pipe,substantially as and for the purposes specified.

2. In combination with the boiler A, dome 0, main pipe E, thesteam-pipes I) II, and

